
\begin{figure}[!htb]
\begin{center}
\begin{tikzpicture}
[
	xscale	= 1,	% to scale horizontally everything but the text
	yscale	= 1,	% to scale vertically everything but the text
	%
%	transform canvas = {scale = 1.0}	% to scale everything (also the text)
										% WATCH OUT: THIS GUY CAN INTRODUCE PROBLEMS
]


\end{tikzpicture}
%
\caption{Caption of this wonderful Ti\emph{k}Z figure.}
\label{fig:wonderful_figure_using_tikz}
%
\end{center}
\end{figure}
